Defenses Guide
Wall: Walls are a basic and effective form of defense best suited to protecting valuable targets such as resource storage, HQ and turrets. Upgrading walls increase their health.

Shield Generator: Shield Generators form a deflective radius around themselves protecting anything insede from damage until the generator is destroyed or the shiekd is collapsed. Upgrading a shield generator increases the shields health and radius.

Army Guide
Barracks: The barracks is where you train infantry to use in battle. After each battle you will need to retrain troops to replace troops expended in battle. Upgrading the barracks unlocks new types of infantry with more specialized roles.

Unit Transport: The Unit Transport are where your infantry and vehicles are stored prior to being deployed in battle.

Hero Command: The Hero command is where you recruit heroes from accross the galaxy to aid you in your war effort. Heroes must be recruited after each time they are used.